Home / 11,637.48-17,456.79-3,318.08

Finding the Fourth Proportional to 11,637.48, 17,456.79 and 3,318.08

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Solution

The fourth proportional to 11,637.48, 17,456.79 and 3,318.08 is: 4,977.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,637.48 : 17,456.79 = 3,318.08 : x
  2. Step 2: Convert to fraction form
    11,637.48/17,456.79 = 3,318.08/x
  3. Step 3: Cross multiply
    11,637.48x = 17,456.79 × 3,318.08
  4. Step 4: Simplify right side
    11,637.48x = 57,922,938.48
  5. Step 5: Solve for x
    x = 57,922,938.48/11,637.48
  6. Step 6: Final answer
    x = 4,977.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.